Value of thyroglobulin combined with ultrasound-guided fine-needle aspiration cytology for diagnosis of lymph node metastasis of thyroid carcinoma

Table 5 Univariate analysis of influence of fine-needle aspiration thyroglobulin on the single diagnosis of cervical lymph node metastasis in patients with thyroid carcinoma

Index	Correct diagnosis (n = 177)	Error diagnosis (n = 32)	t/χ2 value	P value
Age (yr)	49.3 ± 5.8	48.2±6.6	0.966	0.335
Gender, n (%)			0.140	0.708
Male	67 (37.85)	11 (34.38)
Female	110 (62.15)	21 (65.63)
Short diameter of lymph node (cm)	0.62 ± 0.11	0.60 ± 0.08	0.982	0.327
Long diameter of lymph node (cm)	1.38 ± 0.20	1.29 ± 0.23	2.288	0.023
Long diameter/short diameter, n (%)			6.965	0.008
< 2	88 (49.72)	24 (75.00)
≥ 2	89 (50.28)	8 (25.00)
Number of collected cells, n (%)			15.034	0.000
Insufficient	11 (6.21)	9 (28.13)
Sufficient	166 (93.79)	23 (71.88)
Serum TSH (ng/mL)	2.09 ± 0.39	2.31 ± 0.46	-2.854	0.005
Serum TgAb (IU/mL)	20.83 ± 5.17	22.15 ± 5.83	-1.303	0.194
Serum Tg (ng/mL)	18.94 ± 4.20	16.84 ± 4.00	2.621	0.009
Number of cervical lymph node metastases	3.41 ± 0.84	3.15 ± 0.76	1.634	0.104
Characteristics of ultrasonic signs, n (%)			4.885	0.027
Signs of metastasis	142 (80.23)	20 (62.50)
No signs of metastasis	35 (19.77)	12 (37.50)

TSH: Thyroid stimulating hormone; Tg: Thyroglobulin.